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CS4270 Datasheet(PDF) 3 Page - Cirrus Logic

No. de pieza CS4270
Descripción Electrónicos  24-Bit, 192 kHz Stereo Audio CODEC
Download  49 Pages
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Fabricante Electrónico  CIRRUS [Cirrus Logic]
Página de inicio  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4270 Datasheet(HTML) 3 Page - Cirrus Logic

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DS686PP1
3
CS4270
TABLE OF CONTENTS
1. PIN DESCRIPTIONS - SOFTWARE MODE ........................................................................................... 6
2. PIN DESCRIPTIONS - STAND-ALONE MODE ..................................................................................... 7
3. TYPICAL CONNECTION DIAGRAM ..................................................................................................... 8
4. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 9
SPECIFIED OPERATING CONDITIONS ............................................................................................... 9
ABSOLUTE MAXIMUM RATINGS ......................................................................................................... 9
THERMAL CHARACTERISTICS ............................................................................................................ 9
DAC ANALOG CHARACTERISTICS - COMMERCIAL GRADE .......................................................... 10
DAC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE .......................................................... 10
DAC ANALOG CHARACTERISTICS - ALL MODES ........................................................................... 11
DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE .............................. 12
ADC ANALOG CHARACTERISTICS - COMMERCIAL GRADE .......................................................... 13
ADC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE .......................................................... 14
ADC DIGITAL FILTER CHARACTERISTICS ....................................................................................... 15
DC ELECTRICAL CHARACTERISTICS .............................................................................................. 16
DIGITAL CHARACTERISTICS ............................................................................................................. 16
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT ............................................................... 17
SWITCHING CHARACTERISTICS - I²C MODE CONTROL PORT ..................................................... 20
SWITCHING CHARACTERISTICS - SPITM CONTROL PORT .......................................................... 21
5. APPLICATIONS ................................................................................................................................... 22
5.1 Stand-Alone Mode ......................................................................................................................... 22
5.1.1 Recommended Power-Up Sequence .................................................................................... 22
5.1.2 Master/Slave Mode ............................................................................................................... 22
5.1.3 System Clocking .................................................................................................................... 22
5.1.4 Clock Ratio Selection ............................................................................................................ 23
5.1.5 Interpolation Filter ................................................................................................................. 23
5.1.6 High-Pass Filter ..................................................................................................................... 23
5.1.7 Mode Selection & De-Emphasis ............................................................................................ 24
5.1.8 Serial Audio Interface Format Selection ................................................................................ 24
5.2 Control Port Mode ......................................................................................................................... 24
5.2.1 Recommended Power-Up Sequence - Access to Control Port Mode ................................... 24
5.2.2 Master / Slave Mode Selection .............................................................................................. 24
5.2.3 System Clocking .................................................................................................................... 25
5.2.4 Clock Ratio Selection ............................................................................................................ 25
5.2.5 Internal Digital Loopback ....................................................................................................... 26
5.2.6 Auto-Mute .............................................................................................................................. 26
5.2.7 High-Pass Filter and DC Offset Calibration ........................................................................... 26
5.2.8 De-Emphasis ......................................................................................................................... 27
5.2.9 Oversampling Modes ............................................................................................................ 27
5.3 De-Emphasis Filter ........................................................................................................................ 27
5.4 Analog Connections ...................................................................................................................... 28
5.4.1 Input Connections ................................................................................................................. 28
5.4.2 Output Connections ............................................................................................................... 30
5.5 Mute Control .................................................................................................................................. 30
5.6 Synchronization of Multiple Devices .............................................................................................. 31
5.7 Grounding and Power Supply Decoupling .................................................................................... 31
6. CONTROL PORT INTERFACE ............................................................................................................ 32
6.1 SPI™ Mode ................................................................................................................................... 32
6.2 I²C® Mode ...................................................................................................................................... 33
7. REGISTER QUICK REFERENCE ........................................................................................................ 34
8. REGISTER DESCRIPTION .................................................................................................................. 35
8.1 Chip ID - Address 01h ................................................................................................................... 35


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